On their official Twitter, Rainz uploaded a group photo with the words, "Thank you for walking together with us for 100 days. Let's hope to do well. ^^ Thank you. #Rainz #Rainzer #100DaysWithRainzAndRainzer"
Rainz will also continue to release more teasers for their upcoming new album, 'Shake You Up.' Congratulations to the boys for making the 100th day mark!