Anthos*

Anthos*, formerly named as Anthos, is a Japanese male idol group that currently consists of seven members.

They're affiliated with Amagiri Production (a fictional performing arts agency). Anthos is part of a new project called "HanaDoll" where each of the Anthos members has a special seed implanted within them.

Anthos began their activities at a "pre-debut" level with six members before they officially debuted with seven, with the addition of the new member Yashiro Setsuna.

Etymology
Anthos* stems from the word ἄνθος (anthos), which is Greek for "flower" or "blossoming". The meaning should be a "unit that will grow from here on out."

Trivia

 * Fans of Anthos* are referred to as "Antholics."