Theme

Fashion

In the Sustainable Challenge, you can earn Jewel Berries (gem-colored berries), each corresponding to a specific theme. Accumulating Jewel Berries allows you to exchange them for special rewards and prizes. Complete each chapter within the themes to collect Jewel Berries of various colors!
Name Gem color Bright color How to earn Birth month
amethyst
amethyst
#8c52ff
#cfb9fa
2
aquamarine
aquamarine
#26bde2
#7cd8ed
3 Other ways to save water in your daily life [aquamarine]
3 Laundry [aquamarine]
3 How water is used at home [aquamarine]
 3
emerald
emerald
#3f7e44
#6db571
2 Air conditioning [emerald]
3 Lighting [emerald]
2 refrigerator [emerald]
2 Warm water washing toilet seat, hot water supply, bath [emerald]
4 Effects of eco-driving [emerald]
3 Health benefits [emerald]
3 Choosing an eco-friendly transportation method [emerald]
 5
garnet
garnet
#c5192d
#e95868
1
lapislazuli
lapislazuli
#19486a
#2c7eb8
3 Substitutable items [lapislazuli]
3 Recycle [lapislazuli]
4 Impact on global warming [lapislazuli]
1The Situation Surrounding Plastics [lapislazuli]
 12
morganite
morganite
#dd1367
#f1649f
4
pearl
pearl
#dda63a
#ebca8e
3 Let's recycle clothes. [pearl]
2 Regarding International Certifications [pearl]
Let's take a good look at how it's made. [pearl]
3 Think ahead before you buy. [pearl]
3 Incinerated and Landfilled Clothing [pearl]
2 Mass Disposal Issues [pearl]
1 Fashion and Environmental Impact [pearl]
 6
peridot
peridot
#56c02b
#92de71
8
ruby
ruby
#a21942
#e03c6e
3 To use an AED in an emergency [ruby]
1 What is an AED? [ruby]
3 Things you can do to prevent diabetes [ruby]
3 What you can do to prevent dementia [ruby]
2 What can be done for early detection and prevention [ruby]
3 How to improve sleep quality? [ruby]
2 Steps on how to use an AED [ruby]
4 Heatstroke [ruby]
 7
sapphire
sapphire
#00689d
#00aaff
9
topaz
topaz
#bf8b2e
#ddb673
4 What if a light bulb burns out? [topaz]
 11
tourmaline
tourmaline
#4c9f38
#2A986C
3 Benefits of Biodiversity [tourmaline]
3 Four Crises Facing Japan's Biodiversity (Part 2) [tourmaline]
3 Review of consumption behavior [tourmaline]
 10

Environment

Initiatives to reduce environmental impact

Social

Contributing to society and the community

Governance

Collaboration with stakeholders