[Crossover] I Save the World by Clinging to Powerful People

Shiina Minamoto is famous for her terrible luck, but she doesn't mind. Whenever she needs to draw something, she just uses her best-friend-summoning technique.

Chiyo's luck is absolutely reliable.

That is, until she encounters the legendary Broken System.

Shiina Minamoto points an accusing finger: "Why entrust something as important as saving the world to a gacha draw?!"

Broken System: "I've never met anyone so unlucky, yet so pure and unpretentious."

With a nothing-left-to-lose attitude, Shiina Minamoto summons for the nth time. Amid the mysterious light, her best friend's sturdy thighs shine so brightly they blind her.

"Chiyo!!! Please carry me!!!!"

After dropping to her knees, Shiina Minamoto belatedly comes to her senses and demands of the Broken System: "Since when can lucky people become Heroic Spirits?"

Sanchiyo: "I'm standing right here. Why not ask me?"

Shiina Minamoto shakes the Broken System. "Aren't all the Heroic Spirits dead? Chiyo's alive and well!!! I want to go back!"

Theme: Watching the heroine's friendship with her powerhouse best friend