![BtoB mammal the stage full of the carisma [ Photo] Group BtoB mammal is showing off its spectacular stage at 2021 BTOB 4U ONLINE CONCERT INSIDE which was held on Online Live on the afternoon of the 23rd./ Photos](https://img4.daumcdn.net/thumb/R658x0.q70/?fname=https://t1.daumcdn.net/news/202101/23/starnews/20210123180334203gbuf.jpg)
group BtoB mammal is showing off its spectacular stage at 2021 BtoB 4U online CONCERT 'INSIDE' which was held on online Live on the afternoon of the 23rd. / Photos
group BtoB mammal is showing off its spectacular stage at 2021 BtoB 4U online CONCERT 'INSIDE' which was held on online Live on the afternoon of the 23rd. / Photos