Stress, obesity, baldness… Tackle any parallel world person’s health problems with a delish!
A registered dietician, Asayama Touya suddenly got sent to another world together with his little sister one day.
After that, He stumbled upon a restaurant called "Healthy Kitchen", and found out that "all healthy food" tastes bad in that world...

"A tasty, yet healthy food is just a pure fantasy."
That's what most people in Miliasky thought, the country where a Registered Dietician, Asayama Touya found himself transported to.
Even though he was lucky enough to be sent to a world with good public order, and didn't have any trouble procuring any ingredients nor cooking tools. Since science research didn't really advance well there, the concept of "Nutritional Balance" wasn't really well received there, which in turn made them think that it's normal to eat whatever they like.
But then, he found a restaurant called "Healthy Kitchen", the only place that seems to serve "food that's supposed to make you healthier," in a world with such loose views on nutritional balance.
However, what actually served to Touya, who anticipated some awe-inspiring another world food, was something that is far from what he expected...
With his Dietician Knowledge as his weapon, will this ex-office worker be able to turn around the entire norm in the another world!?

-Source: Bookwalker

High school student Amatsuki Iori was summoned to a different world to fight as a brave of salvation, but whilst he was trying to save the world, he ends up being killed by the companions whom he wholeheartly believed in.

It was then, when Iori thought that he already died, he came to his senses only to find that he was re-summoned to the same world, but in the future.

Back again as a brave to subjugate the demon king which his former self had failed to defeat previously…

Then, he noticed, that among the guys who ordered him to fight as a brave, the figure of one of his former comrades could be seen.

「……I will make you regret having betrayed me.」

A girl then appears before him as he is consumed by hatred, but not any ordinary girl – she is the former demon king who is also aiming to take revenge.

The brave man who abandoned his heroic ideals, exchanging them for a burning desire to take revenge and the former demon king who seems ready to join him in his new-found quest.

A reincarnator, Dahliya, taking advantage of her broken engagement, “I won't hang my head any longer” made firm her resolve.

Now using her beloved magic devices any way she wishes, the fun times keep rolling in ―?!

Just when Hyuuma Tadahito had finally received a job offer from a publisher, he was hit by a truck. But when he woke up, he was in a publishing company in a world where he was the only human! Now he will have to get used to his new working life in another world...!

"I know you won’t be satisfied with anyone but me"

I know we shouldn’t be doing this... But when his tongue licks those places I can’t help but want it somewhere deeper.

One day, Karen realizes that she’s been reincarnated as the villainess in an otome game. Furthermore, following the plotline, her engagement to the prince will be broken and her family ruined. In order to avoid the worst end, she locks up her feelings towards the prince’s bodyguard, her childhood friend Hansel. But one day Hansel saves her when she’s in a tight spot and her locked up feelings start to overflow. He passionately kisses her while saying “Forget about this”, but her heart and body are already his.

I'm a character in an otome game?!

I'm Vincent, the butler of the Count's daughter. One day, I suddenly remembered that this world is one of an otome game that I played in my previous life. Furthermore, I remembered that the lady I adore will die a violent death as the villainess! Huh? Don't mess with me! I'll destroy my lady's destruction flag!! As her loving butler (and a capture target), I'll do everything I can to help my lady avoid her bad end.

This is an intense isekai reincarnation comedy!

Chiharu and Maki have worked at the same company together for three years. They were both unceremoniously dumped this spring. As they got drunk together one night, they were both summoned to another world. They were given the very simple job of cleansing miasma.
Well, they had no choice now. They will drink and eat, and if possible, search for a boyfriend who wouldn’t cheat on them.
This is the beginning of their aimless journey through another world.

In her first life, she was a Japanese college student who was raised in a family that favored physical prowess. In her second life, she was reincarnated into another world (not an otome game) as an orphan from the slums. She became hailed as the country's prophet, teaching several students who grew up to be some of the country's top elites. In her third and current life, she was reincarnated as a daughter of a noble family.

Born with the beauty and wealth she hoped for, she had thought that this time she would be able to live freely collecting cute things and indulging in fashion, things she was unable to do in her first life as she feared that they did not fit her. However, she discovered that not only had she been reborn into the same country where only 10 years had passed, but her father was her apprentice and her mother was the one who ran her over and killed her in her second life (lol). Before her death, she had seen four futures in which she would get rejected by different guys and another one where she would be killed. Remembering this, she made a resolution to experience a wonderful romance and hide her past as a prophet.

A certain human country has became prospered in exchange for sacrificing a maiden to a dragon.
But with their progressing civilization, humanity then found the power to defend their country without having to rely to the Dragon anymore.
Feeling that Dragon has became a relic of the past, they picked a priestess to kill the dragon.
However, the Dragon fell in love with the priestess at the first sight instead!
A new and upcoming "killing" romantic comedy!

"…That person, my fated one."

Everything changed for Berlina, a girl who reincarnated in a fantasy world with memories of her previous life, the moment she laid eyes on the Hero, Chris. She abandoned her life in the city and started a new life of chasing after him! Whether in fire, water, or inside a dangerous dungeon, firmly hiding 10 meters behind the figure of the Hero, to chase and watch over him. All to be his bride!!

Lizia is reincarnated into an otome game world as a mob character.

She decides to live with two lives worth of filial piety, however, she has been betrothed to Bernhardt, the last villain in the prince' Route. This is the struggle of Lizia as she tries for a peaceful life.

Tenchi Kaito is a rare genius scientist. When he wakes up one day, he has been transferred to another world. Kaito obtains a rare magic called "Creation" that allows him to create things he once saw. With the help of a female mercenary, Kaito lives with her, earns money by using his creation magic, and spends his days in peace and fun, but he gets caught up in various disturbances. …Using his unparalleled brain and creative magic, he lays waste to his enemies! Other than athleticism and a good sense of naming, this is an otherworldly fantasy due to a natural disaster that's perfect!

Our unnamed protagonist is an ordinary high school boy who loves Magic Walker - a super-popular card game. In particular, he loves the Elf Deck: a selection of cards that, while seemingly weak, can be incredibly powerful when played right.

One day, while on his way to get a new elf card, he gets bullied by his peers. One thing leads to another, and soon he wakes up in another world... in the body of the elf character he was hoping to get his hands on. And wouldn’t you know it, he can summon elf cards from his old world too.

From the duo who created Mazumeshi Elf to Yuboku gurashi: https://mangadex.org/title/33529, and the author of Dungeon Nursery.

That attack isn't magic, it's physics...

One day, a martial artist named Ash was suddenly reborn into another world. He decided that he will become a sorcerer in his second life.

He went through harsh training after becoming the apprentice of the former hero, Morris.

Then, the "Emperor of darkness" suddenly appeared!

Right when the end of the world was approaching, he one-shotted the demon lord?!

In a world without cheats, a cultivation chronicle of wisdom and schemes. Among the students that were sent to another world were three childhood friends: Nao, Toya, and Haruka, who act to find equilibrium and create for themselves a peaceful place of living in the severe environment of a medieval-styled world. Whether it be mutual cooperation in monster subjugation or collection quests, there are no thoughts to become a hero.

Summary from Comic Walker :
Holy Brave, Toudou Naotsugu was summoned from another world to defeat the Demon Lord. Priest Ares was ordered to provide support for the the hero while hiding his true level, however... This is a story of High Priest Ares guiding the Holy Brave on their path to become a Hero.

After the disappearance of his parents, Suzuki Tooru was all over the place and somehow ended up as a caretaker of a school dormitory in Tachikawa. The dorm building is all tattered. Its student boarders are all weirdos. And of course, there are rumors about ghosts haunting it too. Turns out, that dorm is connected to another world! Although Tooru doesn’t have a single friend in class, he can always just go to the dungeon to slay monsters and level-up. There, he befriended a slime, a female knight, and even a female sorcerer ♪ Thus, he begins another day of after-school club activities in another world!

I was reborn as a Viscount's daughter, Cecil, in a very unexpected otome game where all of the love interests are Yanderes. However, Cecil, being the rival character in the game, was killed in every route by the chosen love interest. Furthermore, wishing to have a long life, Cecil meets Ashley who will be her servant and.... he's one of the Yandere love interests...!?

Suddenly a high-school student Subaru Natsuki has been summoned to another world on the way back from the convenience store. With the biggest crisis of his life being summoned to another world and no sign of the one who summoned him things become worse when he is attacked. But when he is saved by a mysterious silver-haired girl with a fairy cat, Subaru co-operates with the girl to return the favor. When they finally manage to get a clue Subaru and the girl are attacked and killed by someone. Subaru then awakens in the place he was summoned and notices the ability he gained "Returns by Death" a helpless boy that only has the ability to rewind time by dying. And beyond the despair can he save the girl from the fate of death!

Yuri Kugimiya is a high school student who has suddenly been transported to another world. As soon as he arrived, he got lost in a dungeon and was then helped by a troop of adventurers. He then discovers that he now has something more: "the Eye of God", one of the strongest skills in this world that allows him to instinctively analyze and evaluate any element.

But Yuri does not intend to use this power to fight. He who only wants a quiet life far from conflicts, he then takes a big decision: he will use his power to become a kitchen ace!