I don't have the contact number eh, pero lemme give it a shot
1. Along E. Rod going to Rotonda turn right to Banawe
2. Pag kanan mo sa Banawe, pag lagpas mo sa first corner or first street crossing Banawe (damn! the name of that street always escapes me) mga ilang metro lang to your right is Ichiban, dun lang yun sa vicinity na yun, wag ka na lumayo dun.