[Zongyinxian] He Is Not a Child, He Is a Reliable Adult

My name is Ichimatsu Komian, and I have a younger sister named Ichimatsu Kohina. The two of us live very happily together without anyone disturbing us. Until one day Xiao Hina summoned... The Silver Immortal ahhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh but one day Hina summoned... A silver fairy...! ! ! Hey, hey, hey, don't come over here! I am a mature adult! Characters who have appeared: Silver Fairy√ AcceleratorYoung Body√ Moonnight RabbitBoy Paper·Young Body√ Purpose: I want to protect Xiao Hina's smile, always