HAPPY RAIN is Ryōki's Super Secret Ninja Art in Senran Kagura: Estival Versus. It requires 2 Ninja Art scrolls to use.
Overview[]
Estival Versus[]
"Happy Rain"
Ryōki strikes a pose where she kneels before getting up, throwing her shield in the air right above her. She aims up in its direction, and begins shooting it with her rifle. The shield starts spinning as the bullets bounce atop the surface of the shield. This causes them to ricochet in a diagonal direction of where she shoots, pelting the enemies with a barrage of bullets that gradually expands outwards. She does this until the final shot is made, sending the enemies flying as she gracefully catches her shield while doing a charming smile.
This technique does large damage, sometimes one-shoting the surrounding enemies, and launching the rest of them away from you. It is a good technique to use when surrounded by enemies.