Reboot 

Toma is now in his third year of high school after resetting his twisted relationship with his boyfriend, Sou, who was his whole world. He has a good relationship with his classmate Maki, who gave him the opportunity to break up with Sou, as a best friend with whom he can talk about his true feelings. He is still shaken every time he thinks of Sou, but he decides to face his past with a new encounter. Just then, he meets Sou again, who works as a teacher at the cram school he started attending...? (Source: Tokuma Shoten, translated) Note: Includes three extra chapters.