This week's "Tetsuko's Room":Mari Yoshiko, the first "song sister," still sings children's songs at 86 years old. Is Uji Koji's "Gomen ne, gomen ne" in Tochigi dialect?

Yuutaro Miura：A daughter was born three years ago. When Tomokazu Miura and Momoe Yamaguchi met their grandchild, "I had never seen such an expression on their face before," they said on "Tetsuko's Room."

Yutaka Takenouchi：Appearance in Asadora"Anpan" has caused a huge stir. Rediscovering the power of words. Also remembering her father who was a Self-Defense Force member on "Tetsuko's Room."

Tsunaki Mihara & Kay Anna："I thought I shouldn't cry," she said. Her husband has been suffering from a series of illnesses, but he continues to go to bed late, get up late, and drink alcohol. The couple appeared on "Tetsuko's Room."

Yuutaro Miura：Father is Tomokazu Miura, mother is Momoe Yamaguchi. The 3-year-old daughter is a lively and talkative child. His wife broadcast the birth live on "Tetsuko's Room."

Toshitaka Suzuki：A world-renowned animal linguist reveals the meaning behind the sounds and behavior of great tits on "Tetsuko's Room"

Toshitaka Suzuki：He has attracted attention from around the world for his proposal of "animal linguistics." He explains in a video of a verification experiment that great tits have multiple languages on "Tetsuko's Room."