Yoshizawa Kuuya, a high-schooler, grew up in a single-parent family. Because his mother was an unpopular actress, he had to work part-time as a pizza delivery boy. While making his delivering one day, he accidentally met a gay couple arguing and one of them was his sensei, Kakei Yuuichi. After that, they started to get closer. Was it a coincidence or a destiny?
(Source: Attractive Fascinante)

University student Yuki exceeds in nothing but housework. So it's no wonder when he is growing anxious because his job hunt is turning fruitless. One day, his father, a university professor, arranges an interview for him as assistant to the famous public speaker Professor Todaka.

Volume 1 (Spring): Kashiwagi Yukiya lives with his son Yuuto in the home he inherited from his grandparents, a mansion surrounded by flowering trees. Takanashi lives there too, a holdover from the mansion's days as a rooming house for students. Long since graduated, he stays on because it's convenient to where he works. And because he's in love with Yukiya-san, whose secrets he's determined to get to the bottom of.

Volume 2 (Autumn): Their three lives still intricately intertwined, Takanashi is stunned by a revelation from Yuuto, and gains a clearer understanding of Yukiya-san's past. But as Yukiya-san grows more distant, nothing is clear about the future.


[from mangaupdates]

Salaryman Miyasaka harbors a secret love for his childhood friend, manga artist Minami. He knows that someday Minami will find a girl and he'll have to say "Congratulations", but so soon?!

Rikuro has been in love with his best friend, Yasutaka, for ten long years. Convinced that he never had a chance, he hid his feelings and moved to Tokyo, dreading the day that Yasutaka will get married and start a family. All that changes at a party one night when Yasutaka admits that he gave in to a desperate co-worker and slept with him. With a renewed sense of determination, Rikuro decides it's time to finally make his move, but his gamble may mean losing his best friend!
(Source: DMG)

Haruka was always weak as a child, unable to normally attend school. Nevertheless, he dreamed of going to school as a regular person, and his wish finally came true. As a result, he is a rare specimen, innocent in the ways of the world, giving him the nickname of "Prince". Follow him in his new school life as he makes friends and befriends one friend, Ryouhei, a little more specially. This is a cute, innocent story.
(Source: M-U)

DMG:

Be it a sudden, painful revelation or a slow ballad, second love carries the hope of happiness again. Two tales of love experienced twice unfold in Want to Depend You.

A professor of literature has died, leaving his son Yamato and his assistant Onodera to put his affairs in order. To Onodera, Yamato constantly echos his beloved professor; his grief grows desperate. Will Onodera’s past memories consume his chance for future love and break Yamato’s heart in the process?

Ten years ago, friends Yuuya and Arata became lovers, but their crushing love died as soon as it began. Yuuya fears the past will repeat itself... but could a song feel different when it’s played a second time?

Includes:
- Yokuaru Koi da to Omou Kedo

A conventional tale of "friendship becomes something more" when one friend secretly falls in love with his best friend who’s quite a womanizer. Things start to change when that friend knows that his friend likes him, and they find themselves feeling awkward with this discovery.