Thin
Detailed
If you take a thread and plant a rice paddy on it, the rice paddy is going to be extremely thin, but also detailed.
さい
ほそ, こま
None
This thin rice paddy is for your cyborg (さい). You gave your cyborg a very thin human stomach, so it can only digest one thin line of rice at a time.
An update is needed before you can continue but you have more than one WaniKani tab open.
Finish up what ever you are doing on the other tab(s), then close them to continue.
The update will complete automatically once the other tab(s) are closed.