Their parents must be in for a surprise once they discover Klaus lives in a large mansion with his sister and monster companions. They were further astonished that Klaus had already obtained the National rank.
Maybe the next monster Klaus gets is a slime with a special ability such as "storage" or "mimicking" similar to some other WNs.
Thanks.
更新ありがとうございます‼️
息子さんはご両親の予想斜め上の活躍をされていますよ。