姉ぶる初恋相手に絶対敗けない!

'I’ll Never Lose To My First Love Who Acts As My Older Sister!' presents a compelling narrative that explores the intricate dynamics of love and kinship. Through a blend of ecchi, romance, school life, and slice of life genres, this Japanese light novel delves into the protagonist's struggle to express their feelings amidst unexpected familial changes. With tags like 'Siblings Not Related by Blood' and 'Sister Complex,' the story offers a fresh perspective on the complexities of relationships and the enduring power of first love.