Manga written by Mangaka Tachibana Kaim:
Ashita no Tamago
Katsuya is a high school student with a secret crush. A stranger unexpectedly shows up, calls him "Grandfather" and begs for his help in saving his father - Katsuya's son. Together with Katsuya's childhood friend, and with Katsuya's secret crush, the four set out to save Katsuya's son.
Chapter 1
5 years ago
Sci-Fi
Romance
Comedy
Adventure