Sabi no Yume Hidari

Sabi no Yume Hidari summary:

Toshio, who was created by modifying the body of a boy into a cyborg designed for sex - was taken in by Shindou, the person who takes care of him. Toshio spends his peaceful days doing chores, and waiting for the arrival of his beloved Shindou. However, while cleaning up Shindou’s belongings after they move out, Toshio happens to find a certain picture… Human x Cyborg BL - The awaited sequel volume