Zenless Zone Zero Hia Coins: All locations where commemorative coins are found

radiotimes.com:

A major part of Zenless Zone Zero is its free rewards and incentives that make the free-to-play game worth returning to time and time again. One of these currencies is the HIA Commemorative Coins that are scattered throughout the city of New Eridu.

These items are useful as they can be exchanged for enhanced materials from Sage in a Barrel, a talking trash can found on Sixth Street behind the Curb Mirror and next to the 141 Store. There are 53 HIA coins to find in total across the four districts of Sixth Street, Brant Street Construction Site, Ballet Twins Road and Lumina Square.

While they might seem random, they are actually found in specific locations and from NPCs that will gift you the HIA coins depending on the time of day. It's also worth noting that you might need to teleport to another district and back again between each coin to reset the location and move on to the next one.

So with that, we've rounded up every HIA coin in Zenless Zone Zero from each location in the game and broken down how to get each one. We've also added a video aid for those who prefer a visual guide.

There are 18 HIA Commemorative Coins in the Sixth Street collection.

Coin #1 – Found with a Fragrant Plant outside the coffee shop in the morning.

Coin #2 – Talk to Elis at the Noodle Shop, then Sage the Barrel and then Elis once again.

Coin #3 – Speak to Jonah by the arcade in the evening.

Coin #4 – Speak with Sjal in the morning by the noodle shop.

Coin #5 – Mr Panda is found outside the coffee shop in the afternoon. A coin can be found on the table.

Coin #6 – By the record store, a crate can be found on the floor to the left in the afternoon.

Coin #7 – Pay 300 Dennies to Roy who can be found in front of the convenience store in the evening.

Coin #8 – Found in a skip by Officer Mewmew in the evening.

Coin #9 – Speak to Lupita by the convenience store in the afternoon.

Coin #10 – Find Mrs Yami by the parking sign opposite the video store, before speaking to one of the Bangboo devices