Hebi no Seikatsu

Hirono Watanabe returns to his hometown to attend the funeral of his twin brother, Seono. He reminisces on the days of their youth, and the love he felt for their childhood friend Yuuma, who would eventually become Seono's mate. Meanwhile, Hirono's promiscuous Omega roommate Ruka finds himself involved with a strange Beta who he meets one night at a sex club.