Mankichi Akira, who works for a major IT company, is doing well at work and in his relationships, but there is one thing about him that's a little different. The rest of his family (mother, one older, and two younger sisters) are "totally unemployed." Furthermore, his childhood friend Minayo just moved in… His goal in life is to help them become independent! And to hook up with his childhood friend! (Source: Comic Trail, translated)

Haruhito Kasuke was ordered by his mum to find an item in the storage house. Being a shopping-holic, Kasuke's mum had caused the storage house to become a dumping ground of unknown goods. Kasuke accidentally found an old ninja katana in the storage house, and the katana suddenly changes into the form of a kunoichi (female ninja). "I had waited a long time and I finally get to see you again.."

"If only I had met you when we were in high school…" Osamu’s girlfriend refused his proposal with these mysterious words. And then after an accident, he time-leaps back to his high school days. He tries to find her and make her fall in love with him again, but when he meets her, he finds out that she has a twin sister…!? (Source: Comic Trail, translated)