My friend recommend this, & I must say it's superb!
The Tonkutsu soup base is super light, & the signature red sauce isn't really that spicy, even when I got it at x2 level. :/ however, It's so tasty that you will finish them with a 2nd serving of noodle. Sadly, the soup isn't refillable :(
The ramen cost 89HKD, comes with the standard selection such as noodles, soup base, char siew (yes/no), serving of signature sauce (>3x will have dry chili pepper, additional of 12HKD >10x), spring onion (yes, no, with leek).
The other toppings are at additional charges 12-14HKD.
Tips: I would recommend additional soft boil salted egg & seaweed. The salted egg isn't salty at all, it taste like hanjuku eggs, but with the flowy egg yolks 😍😍 The seaweed melts when added into the soup (unlike those that stays chunky & hard to chew), adding extra flavor to the soup!
Waited at least an hour, due to it's popularity + lunch time, & it's single seat, over the counter serving concept. Anyway a new outlet had just opened in TST on 6th June 2015! You can avoid the waiting if you pick the right time to visit :)
I'm totally regretting for not buying their home cook packets 😭 please bring this ramen to Singapore!