1. difference between the grid
1.1. Rural and Urban
1.2. Foreign workers
1.3. Welfare
1.4. Homeless
2. Conflict
2.1. Immigration
2.2. Terrorism
2.3. Religion
3. Family
3.1. Income
3.2. DV
3.3. Neglect
3.3.1. Street children
3.4. Nursing
3.4.1. Young carer
3.5. Child rearing
3.6. Hikikomori
3.7. House hold
3.7.1. Role
4. Health
4.1. Corona virus
4.1.1. Economical problems
4.1.2. Travel
4.1.3. Tightening of the Medical Field
4.1.4. No face to face meeting in hospital
4.1.5. Decrease the number of meal with otgers
4.2. Food life
4.2.1. Cigarettes and alcohol
4.2.1.1. Medicine
4.3. Healthy life expectancy
4.3.1. Exercise
4.3.2. Ideal body
5. Education
5.1. Literacy
5.1.1. Resilience
5.1.1.1. Low selfesteem
5.1.1.1.1. Suicide
5.1.1.1.2. No registration
5.1.1.2. Self-efficacy
5.1.2. Media literacy
5.2. Over work of teachers
5.2.1. Depression
5.2.2. Decrease teachers
5.2.3. Karoshi
5.3. Scholarship
6. Insufficient food
6.1. starvation
7. Communication
7.1. Discrimination
7.1.1. Gender
7.1.1.1. LGBTQ
7.1.2. Race
7.2. School
7.2.1. bullying
7.3. Culture gap
7.4. Community building
7.4.1. Work place
7.4.2. Friend ship
7.4.2.1. Outcast
7.4.3. Nakama
7.5. Social skill
7.6. International relationship
7.6.1. Cross cultural understanding
7.6.2. Trade
8. Environment
8.1. Earth warming
8.1.1. Sea level rise
8.1.2. Abnormal weather
8.1.3. Desertification
8.2. Trash
8.2.1. Food loss
8.2.2. Marine Plastics
8.2.3. Pollution
8.3. Collapse of the food chain
8.3.1. Extinction
8.4. Forest harvesting
8.4.1. Landslide
8.5. Sustainable
8.5.1. Energy
8.5.1.1. Element
8.5.2. Products
8.5.2.1. Reuse, Reduce,Recycle
8.6. Disaster
8.6.1. Earthquake
8.6.2. Fire
9. Population growth
9.1. Insufficient resources
9.2. Low birthrate and longevity
10. Right
10.1. Difference in the number of male and female members of Congress
10.2. low voter turnout
10.2.1. Confident
10.2.2. Interest
10.3. Citizen ship
10.3.1. Legal
10.4. Woman
10.5. Male parental leave
11. Technology
11.1. ITC
11.2. Online
11.3. Subscription
11.3.1. Illegal
11.4. SNS
11.4.1. Informationen gap
11.5. Robot
11.5.1. Moral
11.5.2. Work place