Endless World

Endless World is a Boys Love one-volume manga created by Jaryuu Dokuro.

Ex-delinquent Ikki starts working in a small restaurant after the owner saves his life. In there, Ikki meets Ryuu, who he later learns is the cousin of his old friend Toshimitsu.

This manga contains

 * Accidental Murder: Toshimitsu kills a person while he's high, which earns him 10 years in prison.
 * Back From the Dead: The bird at the end is implied to be
 * Barbie Doll Anatomy: Averted.
 * Bi the Way: Toshimitsu; Ikki is somewhat surprised to find out that he slept with Ryuu.
 * Boys Love
 * Drugs Are Bad
 * Hallucinations
 * Jerkass: Toshimitsu
 * Heterosexual Life Partners: Ikki might aspire to be this with Mineyama-san.
 * Ikki and Toshimitsu in the past. They would even share women and have sex with them in the same room.
 * Ho Yay: Ikki and Toshimitsu. And according to Ryuu, Toshimitsu was always talking about Ikki in a fond manner.
 * Hope Spot:
 * In-Series Nickname: Ikki is actually a nickname, and while he tells Ryuu that no one calls him that anymore, only the owner refers to him by his real name. Ikki also nicknames Ryuu and his friends Xiao Long Bao.
 * Interrupted Intimacy: Mineyama-san almost catches Ryuu and Ikki havind sex.
 * Kissing Cousins: Toshimitsu and Ryuu
 * Kissing Under the Influence: Toshimitsu and Ikki.
 * Love Triangle: A weird one between Toshimitsu, Ikki, and Ryuu;
 * Marijuana Is LSD: Supposedly played straight in Ikki's past, and is discussed when Ikki tells Toshimitsu why he doesn't take drugs; Toshimitsu responds by saying that pot doesn't cause hallucinations.
 * Meet Cute: Ryuu leaves a really bad first impression on Ikki, which leads to Ikki punching him.
 * Playboy Bunny: Mostly appears in Toshimitsu's hallucinations.
 * Second Love: Ryuu and Ikki might be this for eachother.
 * Shotacon: The mangaka doesn't give out an age when Ryuu stared sleeping with his cousin, but we can guess it was a case of this since Ryuu was definitively not a high school student.
 * There Are No Therapists: Certainly not for Toshimitsu; Ikki and Ryuu have it a bit better.
 * Those Two Guys: Ryuu's friends.
 * Unable to Cry:
 * Victim Falls For Rapist: Toshimitsu was probably in love with Ryuu, and despite Toshimitsu constantly raping him, Ryuu falls in love with him.
 * Vitriolic Best Buds: Ikki and Toshimitsu
 * Whole-Episode Flashback: How we meet Toshimitsu.
 * Unable to Cry:
 * Victim Falls For Rapist: Toshimitsu was probably in love with Ryuu, and despite Toshimitsu constantly raping him, Ryuu falls in love with him.
 * Vitriolic Best Buds: Ikki and Toshimitsu
 * Whole-Episode Flashback: How we meet Toshimitsu.