Hmm, well I can see why it's happening but can't really figure out what caused it - somehow in the save file that character has ended up with almost 4 times the maximum amount of health, which is messing up the calculation that applies penalties based on how damaged someone is. I have no idea how it happened but it's something that should be pretty easy for you to fix yourself - if you open up the save file with a text editor, just search for all the instances of the line "<Blood>" (without quotes) and look for any numbers that are over 100 - if you change those to 100 the characters stats should look a lot more sane.
148 days ago (+1)
Confirmed, changing the Blood stat to 100 has brought the max stats down. E. Honda has been contained.
Also, I think the Blood stat got affected due to having multiple characters with First Aid on the same squad? I remember Honda got wounded and two characters healed him. I am not 100% certain but that might have happened. Regardless, thank you again!
148 days ago(+1)
It's a bit of a mystery to me; first aid doesn't actually restore health, it just stops bleeding (it is only supposed to use one person on the squad to do it so if multiple healers were applying first aid that's a bit of a bug, but not a major one since the effects would be redundant). The only way to actually regain HP is done by resting over time at the hospital/clinic/safehouse, but in any of these cases there's a check that's supposed to ensure they can't heal over 100%.
My only theory is that there is some combination of factors that allows people to take negative damage from attacks, since there's no check against the cap when receiving damage (after all their HP is supposed to be going down, not up), but I'm not really sure how that would occur. Let me know if you see it happen again and maybe what you were doing just before it occurred. I do have a fix that should prevent it by just resetting anyone with too much blood back to the maximum at the end of each day but it's not a huge issue so I will probably just include it with other fixes the next time I do a build.