Jasmine Punzalan opened her first Kodomo children’s shop in the South End in August 2016. Just four months earlier, she was diagnosed with Stage 3 breast cancer after a series of misdiagnoses. This might have caused some people to rethink their plans, but Punzalan pressed on.

“Keeping myself busy through this process of treatment kept me motivated, taking things one day at a time. Someone looking at me would probably wonder how I’m doing it. But being busy with day-by-day goals — ‘today I will go for treatment, today I’m going to put a rack together’ — means I don’t have time to wallow in anything. I’m motivated and active,’’ says the mother of two young sons, who was inspired to open her boutique after shopping for their wardrobes and finding too many gimmicky designs.

Now she’s come full circle: Punzalan opens Kodomo (annex) on Beacon Hill this weekend. (Kodomo means “child’’ in Japanese, and Punzalan spent time in Japan after college.)

This version is larger than its counterpart across town. The aesthetic is similar, though, with a focus on small-produced, ethically sourced clothing from international labels like unisex zip-ups from Israel’s nununu, cotton shifts in jaunty patterns by Spain’s Motoreta, peplum-hemmed denim jackets by Portugal’s Wolf & Rita, and unicorn dresses from Swedish line Mini Rodini. The clothing fits babies through tweens. She also plans to stock nursery and kids’ décor at this branch, with lines like Canada’s Gautier (contemporary, modern) and Denmark’s Ferm Living (mid-century Scandinavian).

She also hopes that the shop serves as a neighborhood gathering place, with a lounge area with comfy couches and tea for parents and a play area with juice boxes for kids. It’s a happy haven for her, too.

“I feel better, my treatment’s almost over, and I’m opening a second store. There’s a lot of fresh new beginnings for me right now,’’ she says.

45 River St., Boston, 617-936-3808, www.kodomoboston.com

Kara Baskin can be reached at kcbaskin@gmail.com