Girlfriend Who Absolutely Doesn't Want to Take a Bath vs Boyfriend Who Absolutely Wants Her to Take a Bath

Hina (23) really hates taking a bath. 'Coz it's too much of a pain! However, her boyfriend, Teppei (23), tries to make her take a bath with various strategies! Can Hina still continue to be stubborn until the end!? *Note: Includes 4 extra chapters.*