BL Kon!
BLコン! (ぶらこん!)
-Description
From [ Renta!](https://www.ebookrenta.com/renta/sc/frm/item/142702): Back in the day, brothers Naoki and Shio were super close. However, once Naoki discovers they aren't related by blood, he begins to distance himself. While Naoki acts bothered, Shio keeps loving him just the same... but the news isn't easy to shake off.