I didn't see anything describing the various stats you can level up, so I did a very little bit of translating:
Top row:
mind reading
(useless if you can't remember moon runes)
counter for jump attack
螺旋の気を纏った突き上げジャンプ攻撃にカウン夕ー
high damage to clothes (hooray!)
衣服に高いダメージ
quicker special gauge
奥義ゲージの上昇率に影響します
damage given
与えるダメージに影響します
Bottom row:
Position at time of H
intersection method·Master of rape
H時の体位及び
交差法・姦を習得
Burst all returning to nothing
全てを無に帰す連撃
(placard above the description is the best super-attack)
1 moment something filling intersection
一瞬で間合いを詰めての回
rolling kick
転蹴り (counter the kick, I'd guess)
quicker action gauge
行動ゲージの上昇率に影響します
It affects love damage (wut)
愛けるダメージに影響します
Happy grinding!
Three cheers for machine-translated rubbish. Can't even copy and paste the Kanji properly.
Rather than let this poor excuse of a table become definitive, I'll offer my own version. Take it or leave it, at the very least I guarantee I'm not making things up and what I write in English is accurate unlike what others have to say.
Top row first, from right to left:
攻撃力:Affects damage of regular attacks and special moves
精神力: Affects how quickly the SP gauge charges
絶技連弾: Projectile attack dealing high damage to clothing. More points = higher damage. No discount on SP gauge consumption with more points invested.
神技摩蜃: Anti-air spiral thrust. Counters air attacks. Invest more points and more of her jump moves can be targeted provided there's enough SP gauge to activate the skill.
裏技覚神: One time investment allows players to read what's coming their way. As already mentioned, if you can't read it and there's no script kiddie translation available, there's no point getting this.
Bottom row, from right to left:
防御力: More points = less damage sustained.
瞬発力: More points = action gauge charges faster. Unlike older games, she'll still move first even at max level for the very low-damage basic attacks.
極技無間: 2nd strongest special move. Essentially a roundhouse kick. Does more damage and affects more areas with more points invested.
滅技比天: The strongest special move. Only usable at maxed SP gauge. Does pitiful damage until properly invested into. Three of these and the roundhouse should drop Karen on the third round when both are maxed out.
性行スキル: Unlocks more positions during rape and sexual service segments with more points. Also, the counter moves against a specific set of Karen's skills are unlocked as more points are invested. These only activate if her health goes below a certain threshold and the move can be activated regardless of SP gauge level.
3 post lurkers with nothing productive to contribute should crawl back into the woodwork like the insects they are. Or they could be brave enough to admit they have multiple accounts and not hide behind their shell accounts. Machine script-kiddie translators can pick their own names for the categories.