Possessive lovers seme/uke

Eichi has always been in control, but when he notices baby-faced Souta has been taken advantage of, can he really keep his composure? -

Ayase Yukiya is a university student whose cousin Tetsuo Ishii betrays him and sells him in an auction to settle his heavy debts. Ayase is bought by Somuku Kanou for 1.2 billion yen. The reason behind Kanou doing

Fuji Azuma is thrilled to have the chance to spend two whole weeks with his adorable 8-years-younger nephew Taira, head over heels for the kid and the proudest uncle there ever was. But when he learns at the end of their time together that Taira and his mother are moving overseas, he’s shocked to receive a parting kiss and a vow that Taira won’t return—”until I’m taller than you, Azuma-san.” Four years later…and Taira’s back to make good on his promise.