Hiromi Sonoda has no girlfriend, no job, and no home, until he finds a shared-house with very cheap rent and goes to check it out. However, the share-house has a certain condition... Kei Sasuga presents a new "Share House Romantic Comedy"!

Good Ending follows the main character Utsumi's interactions with Kurokawa Yuki, a member of the school tennis team, in order for Utsumi to confess his feelings to the captain of the tennis team.
It is implied that the title of the manga is derived from the "good endings" that are achieved in visual novels.

A short romance one-shot about a boy being dumped by the girl he likes, his cousin, and a cough.

From MangaHelpers:
Tonight, Natsuo loses his virginity. His partner? Her name is Rui and he just met her today after school. She's the one that brought up this whole situation, stating that she wanted to simply gain the knowledge about sex. She does not want to start a relationship, nor does she care about Natsuo.
Afterwards, Natsuo feels guilty for losing his virginity to a girl he doesn't even particularly like. Mostly, it makes him feel like he betrayed his crush to his high school teacher: Hina. A quirky love triangle story unfolds as Natsuo, Rui, and Hina all end up becoming part of the same family.