[Light novel + school life + romantic comedy + System + slow burn + multiple heroines + siblings]
In his previous life, he dies of exhaustion after giving everything to protect the world. His younger sister turns her soul into a System and helps him transmigrate and be reborn.
In this life, all he wants is to laze around, but the energetic Chika latches onto him and pulls him into the daily life of the board game club. The cool and aloof Yukino, the tsundere Taiga, the socially anxious Ichiri, and the gentle Mai all find their way into his life.
He has no idea that the sharp-tongued System in his mind is the younger sister he loved most in his previous life. She wants to tell him the truth, but can only watch as girls crowd around him, as he saves them time and again, and as he slowly recovers his memories.
Five girls, five ways of loving: one openly stakes her claim, one makes her move in secret, one hides behind a prickly attitude, one approaches with care, and one is gentle yet calculating. They compete with one another, but still find a way to accept each other.
But he doesn’t know that every flutter of his heart, every bout of jealousy, and every moment of emotion becomes “emotional energy.” And that energy is his sister’s life. If it falls below a critical threshold, she will fall asleep; once it reaches twenty thousand points, she can take physical form.
When the final void descends, he must choose: keep lazing around, or fight once more for someone important to him?
His sister smiles as she fades away. “Big brother, all those snarky remarks of yours are really the love you felt for me in your previous life.”
This is a story about forgetting and remembering, losing and returning, loneliness and companionship. You’ll laugh until you cry, then cry until you laugh again.
