Ai O Ataeru Kemono-tachi Summary:
40-year-old virgin, Japanese old man found himself in a different world when he wakes up. When he wakes up in a different world he found out his body become young again. With no help from anyone he spends several years become a slave and spend his days full of hardship. In every day like hell until he wishes for death, he meet him…. This is a love story about a young man with small body in the different world that full of beastman.