Sono Kiss ni, Nigon Nashi

Overview

"I don't intend to treat this as a one-night stand. I'll take responsibility, and make you happy for the rest of your life...!" Shirakawa Anzu, 26 years old. She's serious and not good at relying on others, so she has her hands full in both love and work... When she finally gets dumped by her boyfriend, she gets drunk and has a one-night stand with her boss, but he's called a "modern-day samurai" and a stubborn man! The next day, he feels responsible for her, and declares that he'll make her happy forever...?! Some loves start on their knees! A slightly mature love story between a samurai boss and a heart-broken girl that goes against the usual progression of love! Note: Includes Chapter 9 as an extra chapter not included in the volume releases.

Source: AniList