Neruko grows!

My sister, who is extremely shy, suddenly started avoiding my brother. That alone would be fine, but with the addition of her verbal abuse and blatant behavior, her younger sister is pushing her mentally into a corner. Her brother, who feels a sense of crisis that her heart will be broken if things continue like this, takes action to try to resolve the issue, but the situation makes it difficult for him to even meet her sister face-to-face.He spends his days feeling restless, and one day he notices that he is behaving strangely. He was trying to drink water from the toilet.Only then did he realize that his heart was broken.