Takagogi, who adopted a pair of twins, found it difficult to accept the news of the death of his friend Sasa Sona. He was determined to become the continuation of Sasa Sosa's life and shoulder the responsibility of raising the children of Sasa Sona's family. At the same time, he also raised a stray dog Muke. Gao Humu, who can hear dogs complaining or complaining from time to time, was commented by doctors as "the environment comes from the heart". Believing him to be true, Takagomu began a happy life of three people and one dog. However, after the incident involving the children's mother's confession, he suspected that Muke was the dead Sasa Cang??????