The Anniversary of the launch of Tokyo Afterschool Summoners is a recurring event, along with several one-off milestone events. Housamo's Anniversary is associated with the following event quests and gachas:
Event Quests
- First Month Campaign (2017)
- Semi-Anniversary Campaign (2017)
- Nine Months Celebration Campaign (2017)
- 1st Anniversary (2017)
- 2nd Anniversary (2018)
- 3rd Anniversary (2019)
Gachas
- Semi-Anniversary Fire Gacha (2017)
- Semi-Anniversary Water Gacha (2017)
- Semi-Anniversary Wood Gacha (2017)
- Semi-Anniversary Aether Gacha (2017)
- Semi-Anniversary Nether Gacha (2017)