[Niiza City, Saitama Prefecture] Announcement of Opening Ceremony for Natural Hot Spring 'OYUGIWA Niiza Onsen' on Wednesday, May 27

Aeon Fantasy Co., Ltd. (Headquarters: Chiba City, Chiba Prefecture; Representative Director and President: Tokuya Fujiwara) will grand open 'OYUGIWA Niiza Onsen,' a new base for the hot spring brand 'OYUGIWA,' in Niiza City, Saitama Prefecture, at 9:00 AM on Wednesday, May 27, 2026.

Prior to the opening, an opening ceremony will be held starting at 8:40 AM on the day, featuring guests including Niiza Mayor Suguru Namiki and local children, to celebrate the new beginning.

Overview of OYUGIWA Niiza Onsen Opening Ceremony 'OYUGIWA Niiza Onsen,' opening in Niiza City, Saitama, is a new relaxing hot spring destination where multiple generations, from children to seniors, can enjoy themselves all day. It was born from a strong desire to create a new place in Niiza City where multi-generational families can forget their daily lives and relax from the heart. As a community hub for Niiza citizens and a place where three generations can gather with smiles, we will provide hospitality rooted in the community. On the day, we will perform a warm ribbon-cutting ceremony to share the joy with the local community.

Date and Time: Wednesday, May 27, 2026, 8:40 AM – 9:00 AM Venue: In front of the main entrance of OYUGIWA Niiza Onsen (2-1-5 Honda, Niiza City, Saitama) Participants: Guests of Honor, Niiza Mayor Suguru Namiki, local children, and Organizer Tatsuo Tsujimoto, General Manager of the Hot Spring Business Division, Aeon Fantasy Co., Ltd.

Past Engagement between OYUGIWA and Local Communities OYUGIWA holds the 'Kids Staff in OYUGIWA' vocational experience event for local elementary school students every summer vacation. Children explore the 'backstage' of the bathhouse, assist with tasks such as hot water management and cleaning, and take on the challenge of being a 'thermal wave master' using the large fans famous at the facility for 'Roryu.' It is an event that teaches children the joy of working along with learning not available at school.

Additionally, through 'Plogging de Hito-Puro,' we support activities that pick up trash while jogging in the area and provide a place for participants to refresh themselves afterward.

Store Overview Address: 2-1-5 Honda, Niiza City, Saitama Prefecture 352-0022 (Right next to Niiza City General Gymnasium) Telephone: 048-481-0313 Business Hours: 9:00 – 25:00 (Last entry 24:30) Restaurant: 10:00 – 23:00 (Last order 22:30) Admission (Adults): Weekdays 900 yen / Weekends and Holidays 1,000 yen Admission (Children): 400 yen (3 years old to elementary school students)