On April 27, 2021, Carat Entertainment announced that Cherry Blossom will be coming back in early May. They also dropped the first individual teasers for members Haseul and Juda. The comeback is titled as 'School Life'.

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On April 28, 2021, Carat Entertainment released 2 more individual teasers of members Xuxu and Li An.

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On April 29, 2021, Carat Entertainment released the next 2 individual teasers for members Luan and Harumi.

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On April 30, 2021, Carat Entertainment released individual teasers for members Hanami and Ari.

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n May 1, 2021, Carat Entertainment released the last two individual teasers for members Luna and Yuna.