Well, this new update certainly is a bit... over the top but here it goes.
VALENTINE'S UPDATE AHOY!
1) Starting from this Valentine's update to 2/16, all admirals who log in will receive chocolate from their ship girls! These chocolate will be stored under the item storage section and using the chocolate will give you resources!

2)New system, THE MARRIAGE SYSTEM(Temp). It only works for ships that are level 99. To get married, you need the marriage document and a ring.
Now, the process:
- There is a quest that allows to you to get the document and ring but it is only a one time thing.
- After obtaining the document and ring, set your ship girl that is of max level as the flagship of any fleet. After that, enter the modernization menu and click on that shiny level 99 .
- After that, sign the document and have your desired ship girl to sign it, from there, the marriage begins!
- With that, you will unlock the level cap for that ship girl and she is now level 100! Not just that, She will get +3 to luck and improved health!
- After getting married, her level cap is now 150. Also, she gets a 15% reduction in ammo and fuel expenditure, along with special in-office voices quotes!
- (There's this last part which get's a bit confusing but it says that they have implemented the Marriage(temp) voices along with the special in-office voices but they are planning to fine tune it(?) for different ships. I'm completely confused here so, this may be wrong)

3) Inazuma Kai and Ikazuchi Kai's supply and idle voices has been added in while Akatsuki Kai's supply, idle and time report voices have been added.

4) There's a new damaged graphic for Uzuki Kai

5) Shop updates. Marriage documents and ring is available in the shop for admirals who loves more than one ship girl!
*Ahem* Harem *Ahem*

6) New Furniture.
Chocolate Cookie and tea set(Free)
板チョコ型の机(Does not require furniture expert item)
羽毛布団と枕(Requires Furniture expert item)

7) After getting married, there will be a secret furniture available upon clearing a certain quest! And it's a futon. Maybe for some 'Night Battle" Ahem.

Anyway, that's a lot of things to absorb and for me to translate w
Although, there may be errors here and there so do double check with another source!

If not, happy valentine's and try not to eat too much chocolate...
You may end up getting a bad stomach...

Artist: ゆきひろゆき@twitter via Pixiv
-Admiral Tempesta