[Yoshida Tobio] Otomezaurus ~Chikako~ (Part 1) [MTL]

Chikako takes her mother's plea to heart — protect little brother Taichi from their strict father's temper — but her way of helping twists into something far more intimate. Serving as his secret reward for better grades, she watches Taichi's marks skyrocket as their escalating games deepen, and even guilt over deceiving her mom can't break the distorted bond she's grown to crave. A Melonbooks bonus illustration closes things out with three nude girls lounging among guitar amplifiers.