Welcome to Paradise! ~ Meet Saizou, Nao, Yuuki and Reiji, 4 guys who couldn’t be less like each other but for one thing they have in common: a love for gaming. Frequently they gather at the arcade, Game Paradise and indulge in not only games, but also their growing fondess for each other. ;) What does the future hold in store for these young men? Will they find that “LOVE’ is the most exciting game of all? X3 ~from Bitter Sweet

1. Sensei no Jijou (The Cause of my Teacher)
Tooru, who is fond of glasses, confesses his tender feelings to his teacher. The teacher accepts him, but everytime they kiss the teacher takes his glasses off. Does he not want to see Tooru's face when they kiss?

2. Shidoujitsu nite (In the Guidance Room)
Souma Kazunari is a student that is regarded as strange by fellow students. He is in love with his male homeroom teacher Fukuzawa Hajime. Some students bully Souma by hiding a porn video in his desk, and it is found by the teacher. Fukuzawa calls Souma to the guidance room to give him a lecture...

3. Torawarebito, Hitori (A Person Held Captive)
Iijima and Ichikawa are childhood friends; Iijima has been in love with Ichikawa since they were small. He has chased after Ichikawa all his life, and has now entered the same company as him. After a drinking party where their supervisor has been hitting at Ichikawa, Iijima finally looses his cool and ties Ichikawa up...

4. Wakage no Itari (Youthful Indiscretion) — Sequel to Shinobu Kokoro wa.
The ninja Hiiraki refuses to follow his captain's orders to go on a mission separated from his lover Asagi and is thrown into jail. Will Hiiraki's and Asagi's relationship survive this?

5. Wakasama, Gomen! (I'm Sorry, Young Master!)
The son of a lord, who feels that Kurenai, his guard and martial arts teacher, took a sexual joke too far, challenges him to a match.

6. Umi no Miya no Ko (Child of the Palace in the Sea)
A scholar teacher of the Mountain palace country escorts back a spy boy of the Sea palace country (which dominates the Mountain palace country) who is bullied.

Sensei no Jijou (The Cause of my Teacher) extra.

Volume 1
1-3) The Rumored Couple
Aoyama and Akabane, the president and vice president of the student council, are such a good match that there're rumors around that they're an item. Though both of them were supposed to be straight, everything gets complicated when Aoyama suddenly kisses Akabane saying it is an "experiment". As the experiment escalates, their hearts begin to flutter and their everyday life is turned upside down. If this goes on the rumour'll prove to be true... but is it really okay if things turn out this way?!

4) A Drug Against Unrequited Love
Every evening after work Sawano comes to shop in the drug store where Takimoto works. When Takimoto teases Sawano about buying energy drinks, hinting that Sawano might be needing energy during the night; Sawano blurts out that his love is unrequited. Who is the one Sawano loves?

5) Hanamaru Lunch
Everyday Hideki receives a lunch box from his childhood friend Shuntarou. Shuntarou wants to improve his cooking skills; but Hideki secretly wishes that the lunch boxes would be filled with Shuntarou's love.

6) The First Walk
The wealthy but clumsy Narumi is the master of his house since his parents passed away. He has a secret crush on his strict but gentle body guard Sakurai. When Sakurai's birthday is coming up he goes to shop for a present; at the same time the surveillance system set up to protect him breaks down.

7) The First Assistance
More about Narumi and Sakurai from The First Walk.

Volume 2
1-5) The Rumored Couple
The story of Aoyama and Akabane continued.

6) Selfish Recipe

7) The Father's Diary

8) The Secretary's Diary

From BLU: Asahi might seem like your regular high school boy, but this kid's been down on his luck...his entire life! Thankfully, the sketchy but resourceful teacher, Rokujou, just so happens to have the right charm to cure Asahi of what ails him. Too bad it has to come in the form of a kiss! But when Asahi starts to want more than just a kiss, will Rokujou give in and break the delicate balance they've held so far? 1) Our Luck (Bokura no Unsei) (3 chapters) 2) The Mechanism of Love (Koi Suru Kikai) An Aphenphosmphobic living in the mountains receive the visit of his sister who brings him...a robot?...see what happens... 3) The Uniform and You (Seifuku to Anata 4) Uwasa no Futari (The Rumor of Two) Oneshot prequel to the two volume manga of the same name.