Days of Koharu
Days of Koharu / Koharu no Hibi(こはるの日々) is a slice-of-life romance manga by Ooshiro Youkou. It focuyses on Torii Akira who, after preventing a girl from falling in the street, finds himself romantically pursued by her in an overbearing manner.
First date (Chapter 21)
Akira orders himself a huge steak, a move Koharu insists on mirroing despite being much smaller in stature.