Larval Stage Planning is I've Sound's latest unit consisted of 3 new vocalists, including 桐島愛里 (Airi Kirishima), 舞崎なみ (Nami Maisaki) and 朝見琳 (Rin Asami). The girls will have their major debut as Larval Stage Planning under the label Lantis, singing the opening theme song for anime Baka to Test to Shokanjuu Ni! & High School DxD!