Kemonokko Tsuushin: The Animation - Toriko Rupia

Tateomi Kondo, a young man prone to illness, experiences a peculiar morning. He awakens to find a strange bird-subhuman girl, Lupia, by his side. After consuming an egg laid by Lupia, Tateomi feels a surge of revitalization. However, the egg's effects are not limited to his general health; his crotch also experiences a significant, and unexpected, rejuvenation. Lupia, seemingly understanding of the situation, gently nudges him. She then welcomes the egg into her vagina, further solidifying the unusual nature of their relationship and the source of Tateomi's newfound vitality. The anime explores the bizarre dynamic between these two characters and the unique effects of Lupia's eggs.