Chapter 52.5: The Tsundere Girlfriend Who Wants to Give a Christmas Present - Day 81.5

Ichinichi Goto ni Tsun ga Hetteku Tsuntsuntsuntsuntsuntsuntsuntsuntsuntsuntsundere Joshi

This chapter is listed on MangaDex, but the readable pages are not available through the internal reader. It is only available through the official publisher link.