Cappuccino(2013)

Cappuccino

Katsumi Namikawa (16), a super shy high school girl who blushes when reading romance manga and gets flustered when talking to boys, has managed to get herself a college boyfriend! Holding hands, celebrating birthdays, even showing up in a swimsuit - everything is a "first-time experience" in their relationship. It's an endless cycle of the embarrassment, annoyance, and thrills of love!

(Source: Harta Comix, translated)