Tsuppari-kun wa Mukuwarenai

The 16 year-old delinquent Gaku travels to the future in his friends time machine, only to end up on the door of said friends daughter Akira, age 28. Thus begins their time living together, filled with new experiences and gap love spanning age and generation!

Read previous chapters here: https://mangadex.org/title/966536cc-36d7-451d-bfc5-9bc1896c4ca1/this-delinquent-kun-is-ungrateful