Age gap

Shota con as fuck
(Age not indicated)
Uke - highscool
Seme - a fucking psychotic ass kid (a literal child)

*12 years gap*
Uke - 31 years old
Seme - 19 years old

*10 years gap*
Uke - 40 years old
Seme - 30 years old

*15 years age gap*
Uke - 39 years old
Seme - 24 years old

No explanation needed

*8 years gap*
Uke - uncle
Seme - nephew

*10 years gap*
Uke? - 51 years old
Seme? - 41 years old

*11 years gap*
Uke - 22 years old
Seme - 33 years old

Last chapter one shot
*10 years gap*
Uke - 15 years old
Seme - 25 years old

12 years age gap

Uke - 25 (college student)
Seme - 37 (yakuza leader w/ child)