Knockin' On Your Door
- Volume 01Chapter 1-3
- Ch 3 Sep 8, 2020 Ch 2 Sep 8, 2020 Ch 1 Sep 8, 2020
Sequel to 'Bokutachi no Shippai / It is our Failures' story of Kunihiro (Morinaga's big brother) & Masaki included in the main series as side story in vol 5.