MessyLife
E+ many reasons, He can also go to shogi after the dinner "Date",If we keep trying to benefit from sayuri without giving something in return it will only damage the relationship Simping? that's just an excuse to be anti-social and ungrateful besides she is risking her own life with trying to teach us something which only a few jonin are capable of, It's not about simping but about being A good person who returns thier favor and knows how to appreciate others The chapter is at least to me yells "Relationships needs more personal time and bonding than spending time together working/training" and "Too much Training will make us more tired and unaware in dangerous battle situation" which could lead to shinji dying although shinji has good rolls when he is training it might not be true when he is encountering bad situations while doing the C+ mission so it's better to build up our relationship with not only Sayuri but also kota Also check the author's thoughts section about a warning messy added in it, I won't say it because I might cause misinformation so check it yourself and decide what you wanna do yourself
B for the reason... its relaxing and its training sort of playing shogi is I belived confirmed to raise intelligence though I feel we are risking a vist from donzo raising intelligence could be amazing anyway that's my simple awnser. usually I'd push more but the fact that we are gaining intelligence and thus more options in the future should be enough all the others besides A isnt that great no training wait till we have money from the C rank too go out with sayuri and I dont want any of us to ruin things with more training he needs a break a genuine break of sorts and while I called shogi training it really is just a game the +intelligence is just a bonus