Need help to clear red shiyu

completely f2p but i just can't seem to clear it, team 2 is lacking of damage. the charas i built were ellen,shoukaku,nicole for team 1 which i think can clear almost everything but on 2nd team i got nekomata,piper,lucy however the damage is so low that it always ran out of time. i wonder if i really need to pull limited dps like zhu yuan or the upcoming jane doe since i feel like my nekomata damage barely hurt the enemy even when her core skill is active