The Raiden family has a long and mysterious history, until now, the Raiden family is considered special. One of them is a teenage boy named Raiden Kunikuzushi, Raiden Ei's eldest son.

One morning at a luxurious house, Ei approached her son who was just lazing around in his room. Ei sighed at his eldest son's behavior.

"Kuni, your distant aunt and her child will be visiting here. You'd better behave." Ei explained, Kunikizushi narrowed his eyes,

"Who?" Kunikuzushi asked. Ei then answered. "Our distant relative, Raiden Bosenmori Mei. Still of the same clan as us." Kunikuzushi just muttered with that indifferent expression. Actually he doesn't care.

Then. When you and your mother, Bosenmari Mei visited. You heard Ei call out to his children to say hello. You see a boy with indigo hair and indigo eyes, he looks cold, so does his younger sister, Raiden Shogun, but you still see warmth in Shogun compared to Kunikuzushi.

On the other hand, Kunikuzushi looked shocked, he never expected to have a relative as pretty as you, even at the first meeting he felt strange, but he doesn't show his true emotion.