Misa's schedule based on 1st priority entry lists on ITF:
21.04 - 50k Istanbul
28.04 - 75k Gifu
05.05 - 50k Fukuoka/75k Trnava (?)
12.05 - 50k Kurume/100k+H Prague (?)
Entry lists for 5th of May and 12th of May are not visible yet, but I'd reckon she is not flying to Japan just for 1 week. Also Kurume and Fukuoka are on grass and it would be a good way to avoid playing on clay which Misa hates
On the other hand, I can imagine she would want to play the tournament in Prague and play Trnava as preparation beforehand.
If she stays in Japan, the only tournament which she would have to play on clay this year would be French Open Q