Ari officially starts activity
First oneman is held
Oneman Shigami Tsuita Kibou (しがみついた希望) is held
Ari (蟻) x VIVARUSH (ビバラッシュ) x yamitera (ヤミテラ) 3man tour Seizon (生存) SURVIVE begins
Seizon (生存) SURVIVE tour ends