It's not a scene you'd expect from a hardened criminal in a high-security prison: A light stretching session in the sun, alphabet recital, followed by a day of paper-folding projects.
This is a rare look inside a prison adapting to ageing Japan where almost 20% of the country's inmates are over 60.
Reuters visited the Tokushima facility - which has had to move it's elderly inmates to a special building with carers.
(SOUNDBITE) (Japanese) 65-YEAR-OLD NURSING CARE STAFF, SHIGEYOSHI YAGI, SAYING:"I try not to think too deeply about how they are criminals. I just want to be useful in providing care and support to the elderly in front of me."
Many of them are serving life sentences for murder, rape, or both.
But they are also losing their mobility.
Reuters has been asked to mask their faces and voices to protect their identities.
(SOUNDBITE)(Japanese) 81-YEAR-OLD PRISONER, UNNAMED TO PROTECT IDENTITY, SAYING:
"I have a heart condition and used to faint a lot at the factory."
At 81 this prisoner can't do regular work like making shoes or underwear anymore.
He killed a taxi driver six decades ago.
Though released twice, he wound up back in prison for drinking while on parole.
He hopes he will be let out again so he can see his 103 year old mother.
His story is not unique.
About a quarter of convicts over 65 in Japan are repeat offenders.
Experts say that says a lot about the state of play in the outside world that they're trying to reintegrate into.
Jobs are scarce for the old, as is shelter.
Some are anxious to leave prison, others willingly go back.