Original by 774:
http://www.pixiv.net/member_illust.php?mode=medium&illust_id=54218260
http://www.pixiv.net/member_illust.php?mode=medium&illust_id=54234811

Or here:
https://e-hentai.org/g/886582/83036ac8c8/

Previous parts of the story:
Part 1: https://e-hentai.org/g/465746/ccc02d44e7/
Part 2: https://e-hentai.org/g/475886/1f3d3b4fe8/
Part 3: https://e-hentai.org/g/626843/2af8bc6403/

The ride isn't over, it just started.

Base +7, jfji552 +11, stupid army +7, Karism +8, DOIHI +6, Guiliant +9, Lostalgia +5, rockingoldensamurai +6, ohgodwhat1242 +5, Yosshh +6, Knoloa +7, Vezirw +6, Person8 +7, and 54 more...

Nagatoro-san's ramen looks really tasty. I hope she doesn't mind if I grab some...

Base +6, CrossD +15, stupid army +7, Karism +8, Lostalgia +5, hacklol +6, Not-Phen0xyethanol +3, Mannix_ +5, SterveJopes -6, jfragrettel +8, CritiicalMass +6, hazari_13 +5, fiestyferret +3, and 4 more...

Man, that ramen must have a ton of kimchi or chili sauce in it to be colored like that.
I understand that it's cold lately and I guess eating spicy food could mitigate that, but...

Still hot though.

Base +7, Lostalgia +5, Not-Phen0xyethanol +3, HamburgerHelper +6, SterveJopes -6, jfragrettel +8, Mayohiga +6, Dyaus Pita +7, fiestyferret +3, Ost666 +6, Bomb Square +7, nothanksgranddad +5

I wonder if he will make another one which gives you so much hatred for her again.

Base +7, stupid army +7, Lostalgia +5, Person8 +7, jfragrettel +8, Mayohiga +6, hazari_13 +5, nothanksgranddad +5, Dark Mac +12

I don't know why I love these, but I do.

Base +6, stupid army +7, Lostalgia +5, ShadowMKII -7, Blackspell +6, fulldick1 +6, Person8 +7, Not-Phen0xyethanol +3, Romi the Byzantine +6, SpigotTheBear +7, somethingperson +6, ftff5log +8, jfragrettel +8, and 5 more...

She was really soft this time. Probably a trap to make him wear the coll... the choker.

Base +8, armd +6, Lostalgia +5, Person8 +7, somethingperson +6, Tenvice +4, jfragrettel +8, hazari_13 +5, blueaoibloo +5, Ost666 +6, Bomb Square +7

N-No bullying!

Base +7, Lostalgia +5, fulldick1 +6, iamclu +6, Aaronggh +6, HabaneroJim +12, SpigotTheBear +7, somethingperson +6, phangtonk +6, hacklol +6, nowittycomment +10, Tenvice +4, Hyoros +6, and 15 more...

This is so good I'm already overflowing with joy.

More is needed, hoping this year for a great return.

Base +5, Lostalgia +5, DoctorDove +9, jfragrettel +8, hazari_13 +5, Ost666 +6

But this is just a cute date?

Base +6, Lostalgia +5, Okenido +6, Not-Phen0xyethanol +3, HamburgerHelper +6, fidazzle -8, jfragrettel +8, blueaoibloo +5, Ost666 +6

Oh fuck my balls it's you.....

Base +6, Lostalgia +5, HamburgerHelper +6, jfragrettel +8, blueaoibloo +5, Mr.Braun +6, paratoxical +4, nasilacus +6

I don't know why, but when girls are left handed, I find them about 10% more attractive.

... And about 90% less attractive when they say 'thankies'.

Base +2, fulldick1 +6, iamclu +6, Person8 -7, AloofSloth +8, NoNameNoBlame +32, HabaneroJim +12, Lostalgia +5, swordpaladin +8, nowittycomment +10, ungorflesh +6, Shinryu-Rex +6, SonicGTR +6, and 19 more...

Ah.. to see Nagatoro again, such a heartwarming feeling.
I had kinda hoped for a surprise chastity belt. I guess I'm too depraved. Just kidding, there is no such thing as too depraved hehe.

Base +8, Lostalgia +5, SonicGTR +6, DragonLolicon -5, jfragrettel +8, seba5609 +4, Manser2300 +5, Ost666 +6

Nagatoro x the POV-Senpai is the greatest relationship to ever happen.

Base +5, jfji552 +11, AloofSloth +8, SpigotTheBear +7, keiprox +6, SonicGTR +6, jfragrettel +8, 3DM +7, hazari_13 +5, Ost666 +6, portV +6

This is the best christmas present ever! Thank you 774!

Base +6, jfji552 +11, jfragrettel +8, Zerotation +6, OtakuSuicida +6, hazari_13 +5, portV +6

"Og great, a collar I can put on you."

Base +6, Bukowski -6, HabaneroJim +12, phangtonk -6, jfragrettel +8, Kuro Yuuki -6, seba5609 -4, RustySword7 -6, DarkCocoon +6, shadow king -9

She never fails to be cute.

Base +6, jfji552 +14, SpigotTheBear +7, jfragrettel +8, somedude1234symbols -2, Ost666 +6, DarkCocoon +6

@Argondr

PLS DON'T SEXUALIZE THE NAGATORO

Base +6, jfji552 +14, Bukowski +6, DoctorDove +9, heh...narto +6, phangtonk +6, Shinryu-Rex +6, bamboeng +6, jfragrettel +8, erogal +6, Zerotation +6, CritiicalMass +6, hazari_13 +5, and 4 more...

This time she seems much more aggressive than usual.
In the others she's much sweeter. Sure, all of them have verbal abuse, but you can always see that she's just extremely tsundere and hides beneath a facade of dominance.
This one has her outright giving you a fucking collar.

Base +7, Chronas +7, dvigatel +7, jfragrettel +8, CritiicalMass +6, rorschachsface -8, 3DM +7, blueaoibloo -5, Ost666 +6

She is like an extreme tsundere and I love every second of it.

Base +6, SonicGTR +6, HamburgerHelper +7, jfragrettel +8, CritiicalMass +6, Ost666 +6

Nagatoro is strong in ways that I am not.

Base +5, jfji552 +15, Shinryu-Rex +6, fieuponyou +7, jfragrettel +8, somedude1234symbols +4, Ost666 +6, qwertz789 +6, Dark Mac +12

Well there's only a few pages in this gallery, but it does give some insight on how she feels towards him.
1) Her face in the noodle scene clearly shows that she either enjoys his company (hell, she barely even tried to insult him).
Plus, I've never seen anyone look like that with food alone.
2) The dialogue on the bus shows that she's not milking his ass (or is going for the long game) for his worth.
3) She immediately wore the muffler he got her before giving him his present.
It's pretty compelling to say that she might actually be into him.

@vb4 Well, the collar could be symbolic for a lot of things, like her claiming him as only belonging to her.

Base +8, boo9 +5, jfragrettel +8, mizzigianni +6, EmpiresEnd +6, Jack Stark +6, seba5609 +4, CritiicalMass +6, rorschachsface +8, Ost666 +6, hazari_13 +5, TheDudeIV +6, qwertz789 +6, and 2 more...

MERRY CHRISTMAS LADS, REMEMBER THAT NAGATORO IS N O T FOR SEXUAL!

Base +5, EmpiresEnd +6, Zerotation +6, CritiicalMass +6, Ost666 +6, MasaSamurai +6, nasilacus -6, DarkCocoon -6, cocoasweet -6, Polikubb -6, Dos-Tree -6

Just here to remind you that Nagatoro is getting a manga or something.
https://twitter.com/774nanash/status/903237455205212160

Base +6, Ost666 +6, PsiElite +6, cyminum +6

Hopefully the manga sparks some sexual.

Base +15, BooKuhBet +6, qwertz789 +6, nasilacus +6, DarkCocoon +6, gogoman124 +6, robdelobe +6

Literally the best non h doujin EVER

Base +3, jfji552 +15

came back because christmas chapter

Base +6, cocoasweet +6, Baguettes +6