NL10 AJo otb, vs a fish. Facing river overbet shove

[Holdenper]

Villain stats: 46 hand
WTSD: 47
52/14/6
River aggr: 2
Cbet: 0

I bet tiny otf, 'cos 1, he maybe make a move 2, he'll definitely call, and I've got a monster.
Otr...wtf? I guess he can have a floped flush, but I think he would cr/bet at some point. I think he would Cbet a set (yeah, his Cbet is zero, but it's only 46 hand, and his PFR is 14%, so he raised pf like 6-7 times).
Is it a really bad call otr, or it's just a cooler?

$0.05/$0.10 No Limit Holdem
PartyPoker (http://weaktight.com/partypoker/)
5 Players
Hand Conversion Powered by weaktight.com (http://weaktight.com/)

Stacks:
UTG donasthanasi ($5.55)
CO LuigiYakuza ($10.66)
BTN Holdenper ($10.03)
SB BenOKopen ($8.11)
BB MrKnyaz ($10)

Pre-Flop: ($0.15, 5 players) Holdenper is BTN :jd: :as:
donasthanasi raises to $0.40, 1 fold, Holdenper calls $0.40, 2 folds

Flop: :ad: :4d: :td: ($0.95, 2 players)
donasthanasi checks, Holdenper bets $0.20, donasthanasi calls $0.20

Turn: :jh: ($1.35, 2 players)
donasthanasi checks, Holdenper bets $0.70, donasthanasi calls $0.70

River: :5s: ($2.75, 2 players)
donasthanasi goes all-in $4.25, Holdenper calls $4.25

Final Pot: $11.25
Holdenper shows
:jd: :as:
donasthanasi shows
:qs: :kc:

donasthanasi wins $10.69 (net +$5.14)

Holdenper lost $5.55

[babyonboard]

a fish's overbet almost always means valuemaximalization. bet big on turn and commit yaself:)

and plz dont post the results:o

[castor11]

Turn bet 1-1.1, I called on the river.

[iceTray]

I thin you have to make your cbet size on flops like this a normal one, so make it 0.7$ for example. This river is a fold for me against an unknown fish.

[Holdenper]

I thin you have to make your cbet size on flops like this a normal one, so make it 0.7$ for example. This river is a fold for me against an unknown fish.

usually I don't change my bet sizes. This was a one time thing only:)

Thx 4 the answers