Yes, it’s better to do a guide. Four members of the group have a long history of being in a girl group. Look up E-GIRLS Jpop, sub-groups (DREAM, HAPPINESS, and FLOWER) all have disbanded but their videos are still available (short and long versions). The members are: SAYAKA - former E-GIRLS/HAPPINESS RUI (also in a sister group called iSCREAM) RURI - former E-GIRLS/HAPPINESS KAEDE (leader) - former E-GIRLS/HAPPINESS MIYUU (also choreographs) - former E-GIRLS/HAPPINESS