Sequel & Spin-off

Part 2
Iwase Yuutarou x

Part 1
Ikkun x Hana
Hana confess that he was gay to Ikkun before they graduated from high school and took Ikkun virginity then disappear just to come back 3 years later as a crossdresser.

Part 2
Ikkun x Hana
1: Hana is mad at Ikkun for not opening any of the present he brought.
2: Hana found out that some other girl was making bento for Ikkun.
3-5: Ikkun got a job as a tutor Shouta, the kis he tutor, try to get Ikkun to have sex with him.

Part 3
Tsubaki x Masahiro
Tsubaki - Hana's master
Masahiro - Hana childhood's friend and the first son of a yakuzu

* Haven't read yet

Part 4
Ikkun and Hana

Part 1
Chihiro x Keigo

Part 2
Chihiro x Keigo

Part 1
Mikoshiba x Niino
The number of women born is decreasing and the scientist is trying to figure out a way to back humanity and fix this virus. Mikoshiba is a famous upper class scientist who came to the lower class area in order to help their research due to his interest in Niino. Mikoshiba move into Niino apartment and ask Niino to help with with a throey to save the world, which is to have sex?!

Part 2
Tatsumi x Suou

Offical dj: Estrus Virus
http://www.mangago.me/read-manga/estrus_virus/

Part 1
Manabu x Yamaguma
Manabu work part-time as a writer for erotic magazine. When Manabu’s classmate was about to pick a fight with him, Yamaguma came and save him.